Executive summary
⚠ A critical security finding caps this grade — resolve it before relying on the score below; see the Security lens.
The system holds a 64% health score, indicating a workable asset carrying real risk. While the code is clean and the architecture is robust, the overall standing is fragile due to gaps in operational maturity. This score reflects a system that functions well today but lacks the documentation and safeguards needed for safe, long-term evolution without significant overhead.
The value at stake is modest, with a small footprint of roughly 9,000 lines of production code. Rebuilding this system would cost approximately €15,000 and require only one engineer for a short period. Because the rebuild cost is low, the primary risk is not the complexity of the code itself, but the potential for business disruption if key knowledge is lost or if operational errors go undetected. The low rebuild cost means we can afford to invest in improving processes rather than rewriting the code.
The most critical theme is Maturity Drift. With a maturity score of 56%, the system lacks the institutional memory and onboarding clarity required for a new team to pick it up safely. This creates a hidden cost in delay and defects, as every change requires re-learning context. The second theme is Operational Readiness. At 57%, the system has insufficient safeguards to prevent bad releases from reaching users. This exposes the business to reliability risks and potential security exposure if integrity defects in the build pipeline are not monitored. While the code is secure and performant, the lack of release gates means a bad build can slip through without human intervention.
What is genuinely good is the Code Health and Architecture. The code is clean, well-structured, and highly maintainable, with no significant technical debt in the logic itself. The architecture is sound, with a 92% score indicating that changes are unlikely to cause unintended ripple effects. This provides a solid foundation for future development, provided the surrounding operational practices are strengthened.
Where to focus first is capturing significant decisions. The highest-leverage move is to document key design choices in a single, discoverable location. This action buys the most protection against maturity drift with minimal effort. Once this is in place, adding a quick-start guide and implementing release gates will further reduce risk. The picture is partial, as several areas like domain modeling and event-driven patterns were not measured, so the assessment may not reflect the full scope of the system's complexity.
Raise Maturity 56 → 70 (the Healthy floor) ⇒ headline 64 → ~68.
Rebuild cost & value ~ Modeled — €4,900–€25,000
| Cost to rebuild | €4,900–€25,000 |
|---|---|
| Domain complexity | Standard |
| Quality factor | 0.9× (at 64% quality) |
| Size & shape | Small · effort split not classified (source measured from disk; the effort-tier breakdown is a C#-only syntax walk) |
This codebase represents roughly ~0.1 person-years of build effort (about ~€15,000 to rebuild). Its weakest lens is Maturity at 56% — the part of that asset most exposed by the findings below.
Top priorities
Diagnosis — what's actually going on
Architecture — module dependency graph
Architecture — module dependency matrix
| depends on → | 1 FsSpreadsheet | 2 FsSpreadsheet.DSL.Expression | 3 DefaultTestObject | 4 DefaultTestObject.ExpectedRows | 5 Formatters | 6 FsAddress | 7 FsCellsCollection | 8 FsColumn | 9 FsExtension.Tests | 10 FsRow | 11 FsSpreadsheet.CsvIO | 12 FsSpreadsheet.CsvIO.FsExtensions | 13 FsSpreadsheet.DSL | 14 FsSpreadsheet.Enhancements | 15 FsSpreadsheet.Interactive.Formatters | 16 FsSpreadsheet.Js | 17 FsSpreadsheet.Js.FsSpreadsheet | 18 FsSpreadsheet.Js.JsCell | 19 FsSpreadsheet.Js.JsTable | 20 FsSpreadsheet.Js.JsWorkbook | 21 FsSpreadsheet.Js.JsWorksheet | 22 FsSpreadsheet.Json.Cell | 23 FsSpreadsheet.Json.Column | 24 FsSpreadsheet.Json.Row | 25 FsSpreadsheet.Json.Table | 26 FsSpreadsheet.Json.Workbook | 27 FsSpreadsheet.Json.Worksheet | 28 FsSpreadsheet.Net | 29 FsSpreadsheet.Net.Cell | 30 FsSpreadsheet.Net.FsExtensions | 31 FsSpreadsheet.Net.ZipArchiveReader | 32 FsSpreadsheet.Net.ZipArchiveReader.FsWorkbook | 33 FsSpreadsheet.Py | 34 FsSpreadsheet.Py.FsSpreadsheet | 35 FsSpreadsheet.Py.PyCell | 36 FsSpreadsheet.Py.PyCellType | 37 DefaultIO.Tests | 38 FsSpreadsheet.DSL.Messages | 39 FsSpreadsheet.DSL.Operators | 40 FsSpreadsheet.DSL.Transform |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 FsSpreadsheet | ||||||||||||||||||||||||||||||||||||||||
| 2 FsSpreadsheet.DSL.Expression | ||||||||||||||||||||||||||||||||||||||||
| 3 DefaultTestObject | 1 | |||||||||||||||||||||||||||||||||||||||
| 4 DefaultTestObject.ExpectedRows | 2 | |||||||||||||||||||||||||||||||||||||||
| 5 Formatters | 3 | |||||||||||||||||||||||||||||||||||||||
| 6 FsAddress | 1 | |||||||||||||||||||||||||||||||||||||||
| 7 FsCellsCollection | 2 | |||||||||||||||||||||||||||||||||||||||
| 8 FsColumn | 1 | |||||||||||||||||||||||||||||||||||||||
| 9 FsExtension.Tests | 6 | |||||||||||||||||||||||||||||||||||||||
| 10 FsRow | 1 | |||||||||||||||||||||||||||||||||||||||
| 11 FsSpreadsheet.CsvIO | 1 | |||||||||||||||||||||||||||||||||||||||
| 12 FsSpreadsheet.CsvIO.FsExtensions | 2 | |||||||||||||||||||||||||||||||||||||||
| 13 FsSpreadsheet.DSL | 6 | |||||||||||||||||||||||||||||||||||||||
| 14 FsSpreadsheet.Enhancements | 2 | |||||||||||||||||||||||||||||||||||||||
| 15 FsSpreadsheet.Interactive.Formatters | 2 | |||||||||||||||||||||||||||||||||||||||
| 16 FsSpreadsheet.Js | 2 | |||||||||||||||||||||||||||||||||||||||
| 17 FsSpreadsheet.Js.FsSpreadsheet | 1 | |||||||||||||||||||||||||||||||||||||||
| 18 FsSpreadsheet.Js.JsCell | 1 | |||||||||||||||||||||||||||||||||||||||
| 19 FsSpreadsheet.Js.JsTable | 2 | |||||||||||||||||||||||||||||||||||||||
| 20 FsSpreadsheet.Js.JsWorkbook | 1 | |||||||||||||||||||||||||||||||||||||||
| 21 FsSpreadsheet.Js.JsWorksheet | 2 | |||||||||||||||||||||||||||||||||||||||
| 22 FsSpreadsheet.Json.Cell | 1 | |||||||||||||||||||||||||||||||||||||||
| 23 FsSpreadsheet.Json.Column | 2 | |||||||||||||||||||||||||||||||||||||||
| 24 FsSpreadsheet.Json.Row | 2 | |||||||||||||||||||||||||||||||||||||||
| 25 FsSpreadsheet.Json.Table | 1 | |||||||||||||||||||||||||||||||||||||||
| 26 FsSpreadsheet.Json.Workbook | 1 | |||||||||||||||||||||||||||||||||||||||
| 27 FsSpreadsheet.Json.Worksheet | 1 | |||||||||||||||||||||||||||||||||||||||
| 28 FsSpreadsheet.Net | 1 | |||||||||||||||||||||||||||||||||||||||
| 29 FsSpreadsheet.Net.Cell | 1 | |||||||||||||||||||||||||||||||||||||||
| 30 FsSpreadsheet.Net.FsExtensions | 6 | |||||||||||||||||||||||||||||||||||||||
| 31 FsSpreadsheet.Net.ZipArchiveReader | 3 | |||||||||||||||||||||||||||||||||||||||
| 32 FsSpreadsheet.Net.ZipArchiveReader.FsWorkbook | 1 | |||||||||||||||||||||||||||||||||||||||
| 33 FsSpreadsheet.Py | 2 | |||||||||||||||||||||||||||||||||||||||
| 34 FsSpreadsheet.Py.FsSpreadsheet | 1 | |||||||||||||||||||||||||||||||||||||||
| 35 FsSpreadsheet.Py.PyCell | 1 | |||||||||||||||||||||||||||||||||||||||
| 36 FsSpreadsheet.Py.PyCellType | 1 | |||||||||||||||||||||||||||||||||||||||
| 37 DefaultIO.Tests | 1 | 1 | ||||||||||||||||||||||||||||||||||||||
| 38 FsSpreadsheet.DSL.Messages | 1 | |||||||||||||||||||||||||||||||||||||||
| 39 FsSpreadsheet.DSL.Operators | 2 | 1 | ||||||||||||||||||||||||||||||||||||||
| 40 FsSpreadsheet.DSL.Transform | 5 | 3 |
3→1 DefaultTestObject depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in DefaultTestObject → type in FsSpreadsheet) reference.
- Which types
DefaultTestObject.DefaultTestObject→FsSpreadsheet.FsWorkbook
- Direction
- DefaultTestObject uses FsSpreadsheet. Changing FsSpreadsheet can break DefaultTestObject, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
4→1 DefaultTestObject.ExpectedRows depends on FsSpreadsheet✕
- Type pairs
- 2 distinct (type in DefaultTestObject.ExpectedRows → type in FsSpreadsheet) references.
- Which types
DefaultTestObject.ExpectedRows.ExpectedRows→FsSpreadsheet.FsCellsCollectionDefaultTestObject.ExpectedRows.ExpectedRows→FsSpreadsheet.FsRow
- Direction
- DefaultTestObject.ExpectedRows uses FsSpreadsheet. Changing FsSpreadsheet can break DefaultTestObject.ExpectedRows, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
5→1 Formatters depends on FsSpreadsheet✕
- Type pairs
- 3 distinct (type in Formatters → type in FsSpreadsheet) references.
- Which types
Formatters.Formatters→FsSpreadsheet.FsCellFormatters.Formatters→FsSpreadsheet.FsWorkbookFormatters.Formatters→FsSpreadsheet.FsWorksheet
- Direction
- Formatters uses FsSpreadsheet. Changing FsSpreadsheet can break Formatters, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
6→1 FsAddress depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsAddress → type in FsSpreadsheet) reference.
- Which types
FsAddress.FsAddress→FsSpreadsheet.FsAddress
- Direction
- FsAddress uses FsSpreadsheet. Changing FsSpreadsheet can break FsAddress, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
7→1 FsCellsCollection depends on FsSpreadsheet✕
- Type pairs
- 2 distinct (type in FsCellsCollection → type in FsSpreadsheet) references.
- Which types
FsCellsCollection.FsCellsCollection→FsSpreadsheet.FsCellFsCellsCollection.FsCellsCollection→FsSpreadsheet.FsCellsCollection
- Direction
- FsCellsCollection uses FsSpreadsheet. Changing FsSpreadsheet can break FsCellsCollection, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
8→1 FsColumn depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsColumn → type in FsSpreadsheet) reference.
- Which types
FsColumn.FsColumn→FsSpreadsheet.FsWorksheet
- Direction
- FsColumn uses FsSpreadsheet. Changing FsSpreadsheet can break FsColumn, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
9→1 FsExtension.Tests depends on FsSpreadsheet✕
- Type pairs
- 6 distinct (type in FsExtension.Tests → type in FsSpreadsheet) references.
- Which types
FsExtension.Tests.Tests→FsSpreadsheet.DataTypeFsExtension.Tests.Tests→FsSpreadsheet.FsCellFsExtension.Tests.Tests→FsSpreadsheet.FsCellsCollectionFsExtension.Tests.Tests→FsSpreadsheet.FsTableFsExtension.Tests.Tests→FsSpreadsheet.FsWorkbookFsExtension.Tests.Tests→FsSpreadsheet.FsWorksheet
- Direction
- FsExtension.Tests uses FsSpreadsheet. Changing FsSpreadsheet can break FsExtension.Tests, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
10→1 FsRow depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsRow → type in FsSpreadsheet) reference.
- Which types
FsRow.FsRow→FsSpreadsheet.FsWorksheet
- Direction
- FsRow uses FsSpreadsheet. Changing FsSpreadsheet can break FsRow, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
11→1 FsSpreadsheet.CsvIO depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.CsvIO → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.CsvIO.Writer→FsSpreadsheet.FsWorkbook
- Direction
- FsSpreadsheet.CsvIO uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.CsvIO, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
12→1 FsSpreadsheet.CsvIO.FsExtensions depends on FsSpreadsheet✕
- Type pairs
- 2 distinct (type in FsSpreadsheet.CsvIO.FsExtensions → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.CsvIO.FsExtensions.FsExtensions→FsSpreadsheet.FsCellsCollectionFsSpreadsheet.CsvIO.FsExtensions.FsExtensions→FsSpreadsheet.FsWorkbook
- Direction
- FsSpreadsheet.CsvIO.FsExtensions uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.CsvIO.FsExtensions, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
13→2 FsSpreadsheet.DSL depends on FsSpreadsheet.DSL.Expression✕
- Type pairs
- 6 distinct (type in FsSpreadsheet.DSL → type in FsSpreadsheet.DSL.Expression) references.
- Which types
FsSpreadsheet.DSL.CellBuilder→FsSpreadsheet.DSL.Expression.OptionalSource`1FsSpreadsheet.DSL.CellBuilder→FsSpreadsheet.DSL.Expression.RequiredSource`1FsSpreadsheet.DSL.ColumnBuilder→FsSpreadsheet.DSL.Expression.OptionalSource`1FsSpreadsheet.DSL.ColumnBuilder→FsSpreadsheet.DSL.Expression.RequiredSource`1FsSpreadsheet.DSL.RowBuilder→FsSpreadsheet.DSL.Expression.OptionalSource`1FsSpreadsheet.DSL.RowBuilder→FsSpreadsheet.DSL.Expression.RequiredSource`1
- Direction
- FsSpreadsheet.DSL uses FsSpreadsheet.DSL.Expression. Changing FsSpreadsheet.DSL.Expression can break FsSpreadsheet.DSL, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
14→1 FsSpreadsheet.Enhancements depends on FsSpreadsheet✕
- Type pairs
- 2 distinct (type in FsSpreadsheet.Enhancements → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.Enhancements.Enhancements→FsSpreadsheet.FsRangeAddressFsSpreadsheet.Enhancements.Enhancements→FsSpreadsheet.FsRangeColumn
- Direction
- FsSpreadsheet.Enhancements uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Enhancements, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
15→1 FsSpreadsheet.Interactive.Formatters depends on FsSpreadsheet✕
- Type pairs
- 2 distinct (type in FsSpreadsheet.Interactive.Formatters → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.Interactive.Formatters.Formatters→FsSpreadsheet.FsWorkbookFsSpreadsheet.Interactive.Formatters.Formatters→FsSpreadsheet.FsWorksheet
- Direction
- FsSpreadsheet.Interactive.Formatters uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Interactive.Formatters, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
16→1 FsSpreadsheet.Js depends on FsSpreadsheet✕
- Type pairs
- 2 distinct (type in FsSpreadsheet.Js → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.Js.Json→FsSpreadsheet.FsWorkbookFsSpreadsheet.Js.Xlsx→FsSpreadsheet.FsWorkbook
- Direction
- FsSpreadsheet.Js uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Js, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
17→1 FsSpreadsheet.Js.FsSpreadsheet depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Js.FsSpreadsheet → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Js.FsSpreadsheet.FsSpreadsheet→FsSpreadsheet.FsWorkbook
- Direction
- FsSpreadsheet.Js.FsSpreadsheet uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Js.FsSpreadsheet, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
18→1 FsSpreadsheet.Js.JsCell depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Js.JsCell → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Js.JsCell.JsCell→FsSpreadsheet.FsCell
- Direction
- FsSpreadsheet.Js.JsCell uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Js.JsCell, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
19→1 FsSpreadsheet.Js.JsTable depends on FsSpreadsheet✕
- Type pairs
- 2 distinct (type in FsSpreadsheet.Js.JsTable → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.Js.JsTable.JsTable→FsSpreadsheet.FsCellsCollectionFsSpreadsheet.Js.JsTable.JsTable→FsSpreadsheet.FsTable
- Direction
- FsSpreadsheet.Js.JsTable uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Js.JsTable, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
20→1 FsSpreadsheet.Js.JsWorkbook depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Js.JsWorkbook → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Js.JsWorkbook.JsWorkbook→FsSpreadsheet.FsWorkbook
- Direction
- FsSpreadsheet.Js.JsWorkbook uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Js.JsWorkbook, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
21→1 FsSpreadsheet.Js.JsWorksheet depends on FsSpreadsheet✕
- Type pairs
- 2 distinct (type in FsSpreadsheet.Js.JsWorksheet → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.Js.JsWorksheet.JsWorksheet→FsSpreadsheet.FsWorkbookFsSpreadsheet.Js.JsWorksheet.JsWorksheet→FsSpreadsheet.FsWorksheet
- Direction
- FsSpreadsheet.Js.JsWorksheet uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Js.JsWorksheet, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
22→1 FsSpreadsheet.Json.Cell depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Json.Cell → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Json.Cell.Cell→FsSpreadsheet.FsCell
- Direction
- FsSpreadsheet.Json.Cell uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Json.Cell, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
23→1 FsSpreadsheet.Json.Column depends on FsSpreadsheet✕
- Type pairs
- 2 distinct (type in FsSpreadsheet.Json.Column → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.Json.Column.Column→FsSpreadsheet.FsCellFsSpreadsheet.Json.Column.Column→FsSpreadsheet.FsColumn
- Direction
- FsSpreadsheet.Json.Column uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Json.Column, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
24→1 FsSpreadsheet.Json.Row depends on FsSpreadsheet✕
- Type pairs
- 2 distinct (type in FsSpreadsheet.Json.Row → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.Json.Row.Row→FsSpreadsheet.FsCellFsSpreadsheet.Json.Row.Row→FsSpreadsheet.FsRow
- Direction
- FsSpreadsheet.Json.Row uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Json.Row, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
25→1 FsSpreadsheet.Json.Table depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Json.Table → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Json.Table.Table→FsSpreadsheet.FsTable
- Direction
- FsSpreadsheet.Json.Table uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Json.Table, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
26→1 FsSpreadsheet.Json.Workbook depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Json.Workbook → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Json.Workbook.Workbook→FsSpreadsheet.FsWorkbook
- Direction
- FsSpreadsheet.Json.Workbook uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Json.Workbook, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
27→1 FsSpreadsheet.Json.Worksheet depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Json.Worksheet → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Json.Worksheet.Worksheet→FsSpreadsheet.FsWorksheet
- Direction
- FsSpreadsheet.Json.Worksheet uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Json.Worksheet, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
28→1 FsSpreadsheet.Net depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Net → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Net.Writer→FsSpreadsheet.FsWorkbook
- Direction
- FsSpreadsheet.Net uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Net, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
29→1 FsSpreadsheet.Net.Cell depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Net.Cell → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Net.Cell.Cell→FsSpreadsheet.DataType
- Direction
- FsSpreadsheet.Net.Cell uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Net.Cell, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
30→1 FsSpreadsheet.Net.FsExtensions depends on FsSpreadsheet✕
- Type pairs
- 6 distinct (type in FsSpreadsheet.Net.FsExtensions → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.Net.FsExtensions.FsExtensions→FsSpreadsheet.DataTypeFsSpreadsheet.Net.FsExtensions.FsExtensions→FsSpreadsheet.FsCellFsSpreadsheet.Net.FsExtensions.FsExtensions→FsSpreadsheet.FsCellsCollectionFsSpreadsheet.Net.FsExtensions.FsExtensions→FsSpreadsheet.FsTableFsSpreadsheet.Net.FsExtensions.FsExtensions→FsSpreadsheet.FsWorkbookFsSpreadsheet.Net.FsExtensions.FsExtensions→FsSpreadsheet.FsWorksheet
- Direction
- FsSpreadsheet.Net.FsExtensions uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Net.FsExtensions, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
31→1 FsSpreadsheet.Net.ZipArchiveReader depends on FsSpreadsheet✕
- Type pairs
- 3 distinct (type in FsSpreadsheet.Net.ZipArchiveReader → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.Net.ZipArchiveReader.ZipArchiveReader→FsSpreadsheet.FsTableFsSpreadsheet.Net.ZipArchiveReader.ZipArchiveReader→FsSpreadsheet.FsWorkbookFsSpreadsheet.Net.ZipArchiveReader.ZipArchiveReader→FsSpreadsheet.FsWorksheet
- Direction
- FsSpreadsheet.Net.ZipArchiveReader uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Net.ZipArchiveReader, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
32→1 FsSpreadsheet.Net.ZipArchiveReader.FsWorkbook depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Net.ZipArchiveReader.FsWorkbook → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Net.ZipArchiveReader.FsWorkbook.FsWorkbook→FsSpreadsheet.FsWorkbook
- Direction
- FsSpreadsheet.Net.ZipArchiveReader.FsWorkbook uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Net.ZipArchiveReader.FsWorkbook, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
33→1 FsSpreadsheet.Py depends on FsSpreadsheet✕
- Type pairs
- 2 distinct (type in FsSpreadsheet.Py → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.Py.Json→FsSpreadsheet.FsWorkbookFsSpreadsheet.Py.Xlsx→FsSpreadsheet.FsWorkbook
- Direction
- FsSpreadsheet.Py uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Py, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
34→1 FsSpreadsheet.Py.FsSpreadsheet depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Py.FsSpreadsheet → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Py.FsSpreadsheet.FsSpreadsheet→FsSpreadsheet.FsWorkbook
- Direction
- FsSpreadsheet.Py.FsSpreadsheet uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Py.FsSpreadsheet, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
35→1 FsSpreadsheet.Py.PyCell depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Py.PyCell → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Py.PyCell.PyCell→FsSpreadsheet.FsCell
- Direction
- FsSpreadsheet.Py.PyCell uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Py.PyCell, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
36→1 FsSpreadsheet.Py.PyCellType depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.Py.PyCellType → type in FsSpreadsheet) reference.
- Which types
FsSpreadsheet.Py.PyCellType.PyCellType→FsSpreadsheet.DataType
- Direction
- FsSpreadsheet.Py.PyCellType uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.Py.PyCellType, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
37→1 DefaultIO.Tests depends on FsSpreadsheet✕
- Type pairs
- 1 distinct (type in DefaultIO.Tests → type in FsSpreadsheet) reference.
- Which types
DefaultIO.Tests.Tests→FsSpreadsheet.FsWorkbook
- Direction
- DefaultIO.Tests uses FsSpreadsheet. Changing FsSpreadsheet can break DefaultIO.Tests, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
37→3 DefaultIO.Tests depends on DefaultTestObject✕
- Type pairs
- 1 distinct (type in DefaultIO.Tests → type in DefaultTestObject) reference.
- Which types
DefaultIO.Tests.Tests→DefaultTestObject.TestFiles
- Direction
- DefaultIO.Tests uses DefaultTestObject. Changing DefaultTestObject can break DefaultIO.Tests, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
38→13 FsSpreadsheet.DSL.Messages depends on FsSpreadsheet.DSL✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.DSL.Messages → type in FsSpreadsheet.DSL) reference.
- Which types
FsSpreadsheet.DSL.Messages.Messages→FsSpreadsheet.DSL.Message
- Direction
- FsSpreadsheet.DSL.Messages uses FsSpreadsheet.DSL. Changing FsSpreadsheet.DSL can break FsSpreadsheet.DSL.Messages, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
39→2 FsSpreadsheet.DSL.Operators depends on FsSpreadsheet.DSL.Expression✕
- Type pairs
- 2 distinct (type in FsSpreadsheet.DSL.Operators → type in FsSpreadsheet.DSL.Expression) references.
- Which types
FsSpreadsheet.DSL.Operators.Operators→FsSpreadsheet.DSL.Expression.OptionalSource`1FsSpreadsheet.DSL.Operators.Operators→FsSpreadsheet.DSL.Expression.RequiredSource`1
- Direction
- FsSpreadsheet.DSL.Operators uses FsSpreadsheet.DSL.Expression. Changing FsSpreadsheet.DSL.Expression can break FsSpreadsheet.DSL.Operators, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
39→13 FsSpreadsheet.DSL.Operators depends on FsSpreadsheet.DSL✕
- Type pairs
- 1 distinct (type in FsSpreadsheet.DSL.Operators → type in FsSpreadsheet.DSL) reference.
- Which types
FsSpreadsheet.DSL.Operators.Operators→FsSpreadsheet.DSL.SheetEntity`1
- Direction
- FsSpreadsheet.DSL.Operators uses FsSpreadsheet.DSL. Changing FsSpreadsheet.DSL can break FsSpreadsheet.DSL.Operators, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
40→1 FsSpreadsheet.DSL.Transform depends on FsSpreadsheet✕
- Type pairs
- 5 distinct (type in FsSpreadsheet.DSL.Transform → type in FsSpreadsheet) references.
- Which types
FsSpreadsheet.DSL.Transform.Transform→FsSpreadsheet.FsCellsCollectionFsSpreadsheet.DSL.Transform.Transform→FsSpreadsheet.FsRowFsSpreadsheet.DSL.Transform.Transform→FsSpreadsheet.FsTableFsSpreadsheet.DSL.Transform.Transform→FsSpreadsheet.FsWorkbookFsSpreadsheet.DSL.Transform.Transform→FsSpreadsheet.FsWorksheet
- Direction
- FsSpreadsheet.DSL.Transform uses FsSpreadsheet. Changing FsSpreadsheet can break FsSpreadsheet.DSL.Transform, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
40→13 FsSpreadsheet.DSL.Transform depends on FsSpreadsheet.DSL✕
- Type pairs
- 3 distinct (type in FsSpreadsheet.DSL.Transform → type in FsSpreadsheet.DSL) references.
- Which types
FsSpreadsheet.DSL.Transform.Transform→FsSpreadsheet.DSL.RowElementFsSpreadsheet.DSL.Transform.Transform→FsSpreadsheet.DSL.SheetElementFsSpreadsheet.DSL.Transform.Transform→FsSpreadsheet.DSL.TableElement
- Direction
- FsSpreadsheet.DSL.Transform uses FsSpreadsheet.DSL. Changing FsSpreadsheet.DSL can break FsSpreadsheet.DSL.Transform, not the reverse.
- Position
- Below the diagonal — points down the layering, which is what you want.
At a glance — Code Health
At a glance — Architecture
At a glance — Maturity
At a glance — Readiness
At a glance — Security
At a glance — Performance
Security & Compliance — OWASP Top-10 mapping
| OWASP category | Findings | Severity |
|---|---|---|
| A06:2021 — Vulnerable & Outdated Components | 12 | High / Critical |
| A03:2021 — Injection | 10 | High / Critical |
Roadmap
Begin by establishing architectural clarity through documented decisions and adding a quick-start guide to the README to help newcomers. Simultaneously, secure the release process by implementing a draft or gated deployment strategy to prevent bad builds from reaching users. Finally, maintain system stability by resolving the identified prerelease dependency issues and addressing the specific documentation quality finding in the index file.
| Do this | Helps | Effort | Dimension |
|---|---|---|---|
| Resolve the 2 Prerelease dependency finding(s) in Dependency Hygiene. | +6.8 pts | Low | Dependency Hygiene |
| Record significant decisions one document per decision — dated, stating the context, the decision and its consequences — and keep them together wherever your design docs already live (a conventional `docs/adr/` tree, with each file named `NNNN-title` in whatever markup those docs already use, is the most discoverable form). | +7.8 pts | Medium | Architecture documentation |
| Add a build/run (quick start) section to the root README — the first thing a newcomer needs. | +7.7 pts | Medium | Documentation (README) |
| Nothing pauses a release for a human: publish as a draft release (or gate the release job on a protected tag/manual dispatch) so a bad build can be stopped before users can download it. | +7.5 pts | Medium | Deployment & Rollback |
| Resolve the 1 Documentation finding(s) in Documentation Quality — start with index.md. | +2.7 pts | Low | Documentation Quality |
| Resolve the 1 Orphaned files with no living knowledge finding(s) in Knowledge Freshness. | +1.3 pts | Low | Knowledge Freshness |
| Resolve the 9 High CVE finding(s) in Dependency Vulnerabilities — start with REDACTED (6). | +1.1 pts | Low | Dependency Vulnerabilities |
| Resolve the 1 Off-boarding risk finding(s) in Bus Factor. | +0.8 pts | Low | Bus Factor |
File quality
| File | Score | Band | Worst signal |
|---|---|---|---|
| REDACTED | 2.3 | Slop | Dependency Vulnerabilities: High CVE: REDACTED |
| REDACTED | 2.7 | Slop | Static Analysis (SAST): High: REDACTED |
| REDACTED | 4.8 | Mixed | Static Analysis (SAST): High: REDACTED |
| src/FsSpreadsheet.Net/ZipArchiveReader.fs | 7.2 | Mixed | Cyclomatic Complexity: ZipArchiveReader.parseCell (cyclomatic 20) |
| src/FsSpreadsheet/SheetBuilder.fs | 7.2 | Mixed | Cognitive Complexity: SheetBuilder.FsWorksheet.Populate (cognitive 23) |
| REDACTED | 7.2 | Mixed | Static Analysis (SAST): High: REDACTED |
| src/FsSpreadsheet/Tables/FsTable.fs | 7.4 | Mixed | Cognitive Complexity: FsTable.RescanFieldNames (cognitive 20) |
| src/FsSpreadsheet.Net/FsExtensions.fs | 7.4 | Mixed | Cognitive Complexity: FsExtensions.DataType.ofXlsXCell.Static (cognitive 17) |
| src/FsSpreadsheet/DSL/CellBuilder.fs | 7.4 | Mixed | Code Duplication: Members sharing a duplicated core (6 members, 50+ identical tokens) |
| src/FsSpreadsheet/Cells/FsCellsCollection.fs | 7.8 | Mixed | God Classes: TooManyMethods: FsCellsCollection |
| src/FsSpreadsheet.Net/Row.fs | 7.8 | Mixed | God Classes: TooManyFunctions: Row |
| src/FsSpreadsheet/Json/Worksheet.fs | 7.8 | Mixed | Code Duplication: Duplicated block (12–14 lines × 2) |
| src/FsSpreadsheet/DSL/Transform.fs | 8.5 | Near-clean | Cyclomatic Complexity: Transform.Workbook.parseSheet.Static (cyclomatic 17) |
| src/FsSpreadsheet/FsWorksheet.fs | 8.5 | Near-clean | God Classes: TooManyMethods: FsWorksheet |
| src/FsSpreadsheet/Cells/FsCell.fs | 8.5 | Near-clean | God Classes: TooManyMethods: FsCell |
| src/FsSpreadsheet.Net/SheetData.fs | 8.5 | Near-clean | God Classes: TooManyFunctions: SheetData |
| src/FsSpreadsheet.Net/Spreadsheet.fs | 8.5 | Near-clean | God Classes: TooManyFunctions: Spreadsheet |
| src/FsSpreadsheet.Js/FsExtensions.fs | 8.5 | Near-clean | Code Duplication: Duplicated block (27–30 lines × 2) |
| src/FsSpreadsheet/FsColumn.fs | 8.5 | Near-clean | Code Duplication: Duplicated block (17 lines × 2) |
| src/FsSpreadsheet.Net/Workbook.fs | 8.5 | Near-clean | Code Duplication: Duplicated block (11–15 lines × 3) |
How the grades work
A definite problem that already costs you something and drags the score down: a missing authorisation check, a dependency with a known exploit, a build that does not reproduce. Failure here tends to cause failures elsewhere.
Likely wrong, but not failing yet. It degrades the codebase over a longer horizon and can cause failures elsewhere — not urgent this week, not something to carry for two years either.
Recorded, with no effect on how the codebase functions. Present so the survey is complete, not because it needs doing.
Something this survey could not settle from the outside, and which could be critical or serious. Either a control was required and no positive evidence of it exists in the repository — a backup job that nothing shows was ever restored from proves nothing about restores — or our own analysis could not run over that part of the tree. This is not a clean result. These are excluded from the score rather than awarded a pass, so the number on the cover neither rewards nor penalises them: if you act on this survey without resolving them, you carry that risk yourself. Each one is named under Limitations.
Methodology & how to trust this report
Watchdog is a deep, periodic assessment — run each sprint, monthly, or quarterly, taking the time to go wider and deeper than a quick check and surfacing in one coherent report what you'd otherwise piece together from a dozen separate tools. It scores deterministically: the same commit yields the same score, every run. 35 of 39 evaluated dimensions are computed purely by tools and static analysis (confidence 1.0); 4 documentation/naming judgement(s) are LLM-assisted and labelled advisory. Overall confidence is 0.8 — the weighted average across measured dimensions; it falls as more of the score leans on LLM-assisted judgement and rises when it's fully tool-backed.
What we checked — 39 dimensions across the health lenses
- Can you open the finding? Real findings cite a repo-relative file and line you can open at the cited line — never an absolute scratch path. Here, 69 of 140 do; the remainder are repo-wide signals — a dimension-level measurement, not a single line.
- Is there a tool behind the number? Every score below names the method that produced it — Roslyn, git, a scanner, or (for a handful of documentation/naming dimensions) an LLM labelled sampled · advisory — not a narrative.
- Does re-running give the same result? Run it again on the same commit and the score — and this report, byte for byte — is identical. A report whose numbers move between runs is describing the run, not the code.
Tools & methods
| Method | Backs | Version | Evaluator |
|---|---|---|---|
| Roslyn static analysis | Complexity, cohesion, coupling, dead code, API surface, layering | 5.3.0 | ✓ deterministic |
| Native secret scanner | Hardcoded secrets / credentials | 1.0.0 | ✓ deterministic |
| Watchdog duplication detector (in-process) | Code duplication | 1.0.0 | ✓ deterministic |
| Coverage (coverlet / dotnet-coverage) | Line & branch coverage | 10.0.400 | ✓ deterministic |
| NuGet / dotnet | Outdated, vulnerable & deprecated dependencies | 10.0.400 | ✓ deterministic |
| git / LibGit2Sharp | Churn hotspots, knowledge concentration, history | 2.43.0 · 0.31.0 | ✓ deterministic |
| gitleaks · semgrep · trivy | Secrets in history, SAST, CVEs, IaC & container, PII / GDPR | 1.86.0 · 0.69.3 | ✓ deterministic |
| LLM (sampled · advisory) | Documentation quality, ADR conformance, naming — sampled over a bounded sample; advisory, never a deterministic measurement | Local LLM | ◐ LLM · sampled · advisory |
Run transparency — what happened this run
- D6 Cohesion (LCOM4) — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check's reader does not cover the language this repository's product is written in, so it had nothing of the product to read. That is a gap in this analyzer's language reach — not a finding about this repository.
- D10 Test Quality — measured, with a gap in what it reached — Watchdog measured this, but not all of it. What it did not reach is a gap on our side — a collector, parser or image we have not built yet — so the numbers on that dimension cover less than the repository, and the part left out is not evidence that it would have passed. The 10 test(s) behind this row are the ones the JavaScript/TypeScript census could read, and this repository also carries at least 43 test source file(s) (.fs) that it cannot: it reads JavaScript/TypeScript test declarations off disk, so a JUnit/pytest-style suite is invisible to it. Skipped tests, zero-assertion tests and the other quality signals on this row are UNMEASURED in that suite — their absence from the counts above is a gap in this analyzer's language coverage, not a finding that those tests are sound.
- D14 License Compliance — measured, with a gap in what it reached — Watchdog measured this, but not all of it. What it did not reach is a gap on our side — a collector, parser or image we have not built yet — so the numbers on that dimension cover less than the repository, and the part left out is not evidence that it would have passed. This repository declares a Python pyproject.toml/requirements.txt (pip/uv/Poetry), but the licence verdict published here was taken over its NuGet package dependencies. Nothing was read about its Python dependencies' licensing in either direction, and a clean score on this card must not be read as covering them.
- D14 License Compliance — measured, with a gap in what it reached — Watchdog measured this, but not all of it. What it did not reach is a gap on our side — a collector, parser or image we have not built yet — so the numbers on that dimension cover less than the repository, and the part left out is not evidence that it would have passed. This repository declares package.json, but the licence verdict published here was taken over its NuGet package dependencies. Nothing was read about its npm dependencies' licensing in either direction, and a clean score on this card must not be read as covering them.
- D22 Internal API Consistency — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. D22 identifies the intentionally-exposed surface from `IsPackable` and `.Contracts` project names, MSBuild conventions read off the loaded project set. This target exposed no such projects, so the probe never ran; this says nothing about whether the repository has a public API. This repository commits no C#/VB source at all, so there was never an MSBuild project set to read these conventions off. That is OUR side and it is a COLLECTOR gap, not an environment fault: it declares a published package (build/Build.fsproj), but no published-package marker D22 reads admitted any project here, so this ecosystem's public API has no collector, and the remedy is to write one — no change to the scan image can close it.
- D39 IL Efficiency — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. `dotnet build` exited 0, so the repository built; our search of the build output found no first-party assembly to read. That is a gap in how we locate build output, not a property of this repository.
- AX1 Captive dependencies — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads Microsoft.Extensions.DependencyInjection registrations in C# and Spring beans in Java/Kotlin only, and no container it models, or knows cannot hold a captive, was found in this repository's source, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- AX6 Interface segregation — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is computed over the public interfaces this run's compilations declare, and none was loaded, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- AXB1 Runtime evidence locked — no reproducible boot — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. Subject: 1 markup document(s) — HTML, Razor, JSX, Vue, Svelte or server templates. The Runtime Evidence tier boots an app only via docker-compose, an Aspire AppHost, a Dockerfile, an npm dev script, a web service's own toolchain entry point (cargo, go, dotnet, Python, Spring Boot), or an Android app's own Gradle wrapper (run on an emulator); an Apple or Flutter app needs a host it lacks. None applied, so no live runtime a11y/egress/header evidence was collected. You can widen what we reach: add a docker-compose.yml (or an Aspire AppHost) that brings the app up with its dependencies. Watchdog then boots it in an isolated sandbox and gathers real runtime evidence — you change nothing in your pipeline (no CI step, no SDK).
- C1 Data Protection — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These personal data controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks personal data controls.
- C2 Access Controls — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These authorization controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks authorization controls.
- C3 Audit Trail — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These audit controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks audit controls.
- C4 Data Retention — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These retention controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks retention controls.
- C5 Data-Subject Rights — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These data-subject rights controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks data-subject rights controls.
- GD1 Unfinished & placeholder code — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- IC1 Incompleteness & stubs — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- P2 Observability — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. Observability was not assessed: this check recognises the logging, tracing/metrics and health-check idioms of .NET, the JVM, Go, Python, JavaScript/TypeScript, Rust, Ruby, PHP, Swift, Dart, Elixir and Erlang, and most of this repository's production source is in none of them. Absence of an idiom this check recognises is NOT evidence that this repo lacks structured logging. This is a gap in the analyzer, not a finding about this repository.
- P5 DR & Backup — not measured this run — This is a true statement about the repository that carries nothing for its owner to act on, so it is reported here rather than as a defect in their code. No backup/snapshot/replication config, RTO/RPO or restore-procedure documentation was found — and none applies: this repository publishes a library and deploys nothing (no container, IaC or deployment manifest), so it holds no runtime state of its own. Any data-access dependency it declares is the store it is a CLIENT for, not one it operates. The DR control belongs to whoever runs that data.
- P8 Schema migrations — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads EF Core usage in C# and the schema tooling its file scan recognises only, and no .NET project was loaded, and this repository's language is not one the scan models, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- PF2 Allocation hygiene — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. Those languages have allocation-aware idioms of their own, but this check does not read them yet. That is a gap in this analyzer's language reach — not a finding that the code is careless with allocations.
- S1 Web-Security Posture — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These web-security controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks web-security controls.
- X1 Async correctness — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X12 Unreachable branch — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X13 Undrained process stream — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X14 Bypassable address classification — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X15 Unvalidated length from an untrusted reader — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X16 Unfloored truncation loop — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X17 Uncapped recursion over a caller-supplied document — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X18 Disposal-pattern correctness — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X19 Unrestored process-global state — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X2 Cancellation propagation — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X20 Mistyped argument guard — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X21 Side-effecting pattern guard — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X22 Contradicted release guard — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X23 Unguarded diagnostic materialisation — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X24 Document value interpolated into markup unescaped — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X25 Inert configuration knob — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X26 Unsynchronised callback handoff — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X27 Collection changed while being enumerated — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X29 Per-element action decided by a fixed element — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X3 Exception handling — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X30 Support guard that admits what it rejects — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X32 Type resolved by simple name across every loaded assembly — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X4 Structured logging — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X5 Nullable reference types — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is implemented over the C# syntax tree, and no C# was loaded on this run, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
- X6 Hand-rolled structured-format parsing — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and Python, JavaScript/TypeScript, Go, Java/Kotlin/Scala, Ruby, PHP, Rust and Swift source only, and no C# was loaded and none of those languages was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
Limitations & what we did not check
Watchdog assesses the repository exactly as committed, and only the repository. By design it does not reach outside the source tree: the live cloud account, the running CI/CD pipeline, the host's branch-protection and approval rules, the production configuration, or a restore actually exercised against a backup are all out of scope. That boundary is a feature, not a gap — a repo-relative, deterministic scan re-runs identically on any commit and every finding opens at a real file and line, where a live audit can neither be reproduced nor traced. The visible consequence is that controls which leave no in-repo evidence are reported as "not evidenced" and excluded from the score rather than awarded a number a static scan cannot justify.
Per-dimension blind spots
- D1 Cyclomatic Complexity: Cyclomatic complexity counts branches statically — it cannot tell an essential decision tree from accidental tangle, nor see complexity that lives in data or configuration (large switch-case token tables, DSL lexers/parsers, data-as-code rule tables) rather than control flow: a tokenizer's many single-character cases read as high complexity though each branch is trivial.
- D2 Cognitive Complexity: Cognitive-complexity heuristics approximate how hard code is to follow; genuine domain difficulty and well-named intent that eases reading are not captured.
- D3 God Classes: "God class" is sized by members and responsibilities visible in the type — a deliberately broad facade over a coherent subsystem can read the same as an accidental grab-bag. For front-end JS the file-length check is cohesion-aware (a single-responsibility module — one class/IIFE — earns a 3× threshold), but cohesion is approximated from top-level declarations, not true dependency structure.
- D4 Code Duplication: Duplication is token-similarity — an in-process token-stream comparison over sliding windows, with type-aware normalization — so it finds copy-paste, not semantic duplication expressed differently. Committed machine-written code (scaffolded migrations, designer/codegen output, protobuf/OpenAPI stubs, model snapshots) is EXCLUDED — its repetition is the tool's, not the team's — so the score reflects hand-written duplication only.
- D5 Coupling: Coupling is measured between projects/assemblies — runtime coupling through DI, reflection, messaging or shared databases is invisible to a static reference graph.
- D9 Test Distribution: The test-pyramid shape is inferred from project/folder naming and references, with a single test host bucketed per-file by its path tier and content signals — a suite that names tiers unconventionally and gives no per-file signal can still be mis-bucketed.
- D10 Test Quality: Assertion density is structural — it cannot tell a meaningful behavioural assertion from a trivial one, only that an assertion is present.
- D11 Test Reliability: Flakiness is inferred from history/markers — Watchdog runs the suite once (for coverage), not the repeated runs under varied conditions that reveal nondeterminism, so a flaky test never recorded as failing is invisible here.
- D12 Dependency Hygiene: Dependency health reads manifests and lockfiles — a vulnerability in a vendored/copied dependency, or risk from how a dependency is actually used, is outside this view.
- D13 Secret Scanning: Secret detection is signature- and entropy-based on the current tree — a secret that does not match a known pattern, or one already rotated, will not be flagged (a clean scan is "nothing matched", not "no secrets exist").
- D14 License Compliance: License compatibility is checked against declared package metadata and a policy — mislabelled or missing license metadata, and obligations that depend on how you distribute, are not resolved here.
- D15 Churn × Complexity Hotspots: Churn hotspots come from git history — a freshly imported or squashed repository has no churn signal, and recent rewrites can mask a historically risky file.
- D16 Bus Factor: Bus-factor is a time-decayed model of commit attribution (who has recently, repeatedly worked a file), not comprehension — pairing, review and reading-without-committing spread knowledge it can't see; bot commits and shared accounts still distort it.
- D19 Documentation Quality: Documentation quality is judged by an LLM over a bounded sample of docs — it reads what is written, not whether the docs match the running system, and it is advisory, not a measurement. Its critique rows are drawn from a closed category vocabulary and each row means the same thing in every run, so two scans can be compared row by row; the SET that fires is still a sample, and does not repeat exactly. Measured on one frozen input, six scans at one engine SHA: 2-5 critique rows per scan, 8 distinct rows across the six, 3 of those 8 seen in only one scan. So a D19 row is evidence about the documentation, but a COUNT of D19 rows is not a quantity — never read a change in it as an improvement or a regression.
- D21 Naming Consistency: Naming quality is an LLM judgement over a bounded sample — it assesses clarity/consistency of the names it sees, not domain-correctness, and is advisory.
- D26 Project Cohesion: Project focus is sized from members/namespaces per project — a project that is broad by deliberate design reads the same as one that has sprawled.
- D27 Navigability: Indirection/navigability is structural — it measures hops to follow a call, not whether that indirection buys real flexibility or just ceremony.
- D28 Secrets (history): Secret-history scanning sweeps the git log for known patterns — a secret that predates the available history, or never matched a signature, is not found (clean means "nothing matched in the history we can see").
- D29 Static Analysis (SAST): SAST findings are pattern-based (semgrep) — it finds classes of bug it has rules for; logic flaws, auth/authorization gaps and issues needing runtime context are out of reach (and clean means "no rule matched").
- D30 Dependency Vulnerabilities: CVE matching depends on accurate package/version metadata and on the advisory databases — a vulnerability with no published advisory, or in code not declared as a dependency, is not seen. Coverage needs a RESOLVED graph: an unpinned requirements.txt, or a pom without a resolved build, yields partial coverage rather than a clean verdict. An ecosystem the analyzer cannot scan is reported as unmeasured, never as clean.
- D34 Knowledge Freshness: Freshness is decayed commit RECENCY, not comprehension — code read often but rarely committed reads as orphaned, and stable code that genuinely needs no changes is penalised the same as forgotten code; bot/squash commits distort it like the bus factor.
- D35 Change Coupling: Change coupling is co-change in COMMITS — files split across separate commits, or coupled only through a shared config/build step, read as uncoupled, and a sweeping commit (rename/format) is excluded so it doesn't couple everything. It shows that files change together, not WHY: a high coupling can be a healthy cohesive pair as readily as a hidden leak.
- D43 Malicious Dependencies: Only packages some vulnerability database has already NAMED as malicious are seen — a compromise published in the last hours, or never reported at all, is invisible here, and this dimension reading 10 is not evidence that a dependency is trustworthy. There is no typosquat or dependency-confusion analysis: a package nobody has reported is simply absent from the feeds. Coverage is the dependency scan's: an ecosystem that could not be scanned is disclosed as unmeasured, never as clean.
- D44 Platform End-of-Life: The support table is FROZEN, so it goes out of date by losing RECALL: a release that ended support after the table was written is missed until the table is refreshed, and this dimension reading 10 is not evidence that a platform is current. Only platforms the repository DECLARES in a place this pass reads are seen — a runtime named only in a Dockerfile (D31's subject), in a CI workflow (D29's), or in a file this pass does not parse (go.mod, a Gemfile ruby directive) is invisible here, which is why a repository declaring none of them abstains rather than scoring. Only frameworks with a PUBLISHED support policy are tracked: React, Flask and Express publish none, so their age cannot be judged and their absence from a report is not a statement that they are supported.
- AX10 Code composition: Role is inferred from namespace/folder convention, not semantics — a domain concept living in a folder named "Services" reads as application, and the split is lines-of-code, not business value. The business-logic-share score is a SOFT, FLOORED signal: it contributes to the Architecture lens but is floored at the Critical gate, so an infrastructure-heavy design (a gateway, an ETL, a driver) is legitimately low without being nuked to zero.
- M4 Documentation accuracy: Onboarding quality is an LLM read of the docs/setup present — it cannot run the onboarding or measure how long a real new joiner takes; the verdict is sampled and advisory.
- P4 Deployment & Rollback: Approval/branch-protection rules live in repository settings the scan cannot see — only their in-repo evidence (config files, workflows) is checked, so a control enforced purely in the host's settings reads as "not evidenced".
- P6 Release Hygiene: Rollback/observability controls are inferred from repo artefacts (pipelines, dashboards-as-code) — controls configured in external tooling, with no in-repo trace, cannot be credited.
The LLM boundary
Dimensions
D1 · Cyclomatic Complexity
2 method(s) exceeded the cyclomatic complexity threshold of 15; the worst was ZipArchiveReader.parseCell at 20. A further 4 method(s) were over the threshold but excluded as flat dispatchers (a long switch/match over independent cases: many branches, almost no nesting), the largest being Operators.parseAny at 19 — they are counted neither in the figure above nor in this dimension's score. 3 files carry no cyclomatic complexity row at all for this reason — every one of their over-threshold methods was excluded, so the exclusion is disclosed nowhere in the file itself: src/FsSpreadsheet/DSL/Operators.fs (Operators.parseAny at 19), src/FsSpreadsheet/Cells/FsCell.fs (DataType.InferCellValue at 17), src/FsSpreadsheet.Net/Cell.fs (Cell.inferCellValue at 16). They are named here because the per-file figures other dimensions report are taken BEFORE this exclusion, so such a file can show a high maximum complexity elsewhere in this report and nothing here, with nothing to reconcile the two.
What to do
- Bring the 2 bodies over 15 down to 15 or less in Cyclomatic Complexity — start with ZipArchiveReader.parseCell (cyclomatic 20), Transform.Workbook.parseSheet.Static (cyclomatic 17). — This score is capped by its worst body, so a finding fixed alone moves it by almost nothing — the next one down takes its place. Refactoring these 2 together lifts Cyclomatic Complexity from 9.5 to about 10.0/10, projected with the scoring formula itself and assuming each lands exactly at 15.
- Enforce Cyclomatic Complexity in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
D2 · Cognitive Complexity
7 method(s) exceeded the cognitive complexity threshold of 15; the worst was ZipArchiveReader.parseCell at 36.
What to do
- Bring the 7 bodies over 15 down to 15 or less in Cognitive Complexity — start with ZipArchiveReader.parseCell (cognitive 36), SheetBuilder.FsWorksheet.Populate (cognitive 23), ZipArchiveReader.parseWorksheet (cognitive 22). — This score is capped by its worst body, so a finding fixed alone moves it by almost nothing — the next one down takes its place. Refactoring these 7 together lifts Cognitive Complexity from 8.5 to about 10.0/10, projected with the scoring formula itself and assuming each lands exactly at 15.
- Enforce Cognitive Complexity in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
D3 · God Classes
8 god class(es) detected.
What to do
- Resolve the 4 TooManyMethods finding(s) in God Classes — start with FsWorksheet.fs, FsTable.fs, FsCell.fs. — One of this dimension's main actionable groups (4 warning-level).
- Resolve the 4 TooManyFunctions finding(s) in God Classes — start with FsExtensions.fs, Row.fs, SheetData.fs. — One of this dimension's main actionable groups (4 warning-level).
- Enforce God Classes in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
D4 · Code Duplication
21 duplicated block group(s) detected. One further row reports members as variants of one another; it aggregates block groups already counted above and is not itself counted.
What to do
- Resolve the 3 Duplicated block (7 lines × 2) finding(s) in Code Duplication — start with SheetBuilder.fs (2), Table.fs. — One of this dimension's main actionable groups (3 warning-level).
- Resolve the 2 Duplicated block (11 lines × 2) finding(s) in Code Duplication — start with SheetBuilder.fs, FsTable.fs. — One of this dimension's main actionable groups (2 warning-level).
- Resolve the 2 Duplicated block (8 lines × 2) finding(s) in Code Duplication — start with Stylesheet.fs, CellBuilder.fs. — One of this dimension's main actionable groups (2 warning-level).
- Enforce Code Duplication in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Verified — provenance only; does not change the score.
D5 · Coupling
14 projects, 0 dependency cycle(s), 0 unstable depended-on project(s).
D9 · Test Distribution
10 test methods: 10 unit, 0 integration, 0 BDD, 0 e2e. The JavaScript/TypeScript suite contributes 10 `it`/`test` case(s) across 2 test file(s) declaring at least one; its tier split is read from package names and paths only.
D10 · Test Quality
0 skipped, 10 zero-assertion, no mocking-framework packages referenced (hand-written doubles or no mocking) across 10 tests (1 harness-style project(s) excluded from the assertion penalty). Measured on the JavaScript/TypeScript suite only — at least 43 test source file(s) (.fs) went unread, so its test quality is unmeasured and is not in these counts.
D11 · Test Reliability
0 flaky across 2 measured tier(s). unit: measured (0 flaky); other: measured (0 flaky).
D12 · Dependency Hygiene
16 outdated, 0 vulnerable, 0 deprecated, 2 prerelease packages. Those are the NuGet packages; this repository's npm dependencies were read too — 37 outdated of 79 package(s) across 1 lockfile(s).
What to do
- Resolve the 2 Prerelease dependency finding(s) in Dependency Hygiene. — One of this dimension's main actionable groups (2 warning-level).
- Enforce Dependency Hygiene in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Verified — provenance only; does not change the score.
D13 · Secret Scanning
Secret scan ran and found no leaked secrets.
D14 · License Compliance
0 of 211 packages use a banned license. ★ DEPTH: this repository's MSBuild projects declare 27 direct `PackageReference`(s), and 179 further package(s) were reached beyond them by closing the graph over nuget.org's own nuspec dependency graph — so a banned licence pulled in only by a dependency's OWN dependencies is inside this verdict. A package whose licence nuget.org could not be asked for is not graded, and version ranges are taken at their lower bound, so this is the closure as that graph states it rather than a restored consumer's exact resolution. ★ COVERAGE OF THIS VERDICT: it grades this repository's NuGet package dependencies and nothing else. The repository also declares a Python pyproject.toml/requirements.txt (pip/uv/Poetry) and package.json, and the licences of those dependency graphs were NOT read by this pass — a gap in this engine's coverage, not a statement about them. So this result says the graded closure carries no banned licence; it does NOT say this repository's licensing is clear.
D15 · Churn × Complexity Hotspots
No churn × complexity hotspots in the window.
D16 · Bus Factor
3 source file(s) have their living knowledge concentrated in one author (≥90% of recent, decayed contribution). The largest is src/FsSpreadsheet.Net/Cell.fs. Counted over 43 of the 68 production source files in this repository: the rest are under the ~2,400-byte size floor this dimension measures over.
D19 · Documentation Quality
The repository's root README (FsSpreadsheet) gives a clear overview of the project and its releases plus links to PyPI, npm, and NuGet packages. The src/FsSpreadsheet.Interactive/README is an internal directory README documenting that directory only; it does not claim or describe the FsSpreadsheet library itself. docs/index.md is the authoritative documentation for the FsSpreadsheet library: a well-structured installation guide covering dotnet, script, and Python with usage examples for Xlsx_IO and Json_IO, plus a complete outline of every section present in the summary (DSL, r
What to do
- Resolve the 1 Documentation finding(s) in Documentation Quality — start with index.md. — One of this dimension's main actionable groups (1 recommendation-level).
D21 · Naming Consistency
0 naming inconsistencies across 0 sampled symbols.
D26 · Project Cohesion
1 of 1 build units (npm) flagged as possibly oversized/incoherent.
What to do
- Resolve the 1 Projects may be oversized for their cohesion finding(s) in Project Cohesion. — One of this dimension's main actionable groups (1 recommendation-level).
D27 · Navigability
72 % of calls cross a namespace and 3 % go through an interface, but 100 % of collaborators are co-located — so a call's collaborators sit together and tracing stays easy. Baseline: small — navigation cost is tolerated.
D28 · Secrets (history)
gitleaks scanned the full history AND the current working tree and found no secrets.
D29 · Static Analysis (SAST)
10 finding(s): 0 critical, 9 high, 1 medium, 0 low. 8 unpinned-GitHub-Actions row(s) are reported here but scored by D36 (supply-chain provenance), which measures that posture as `pinned_actions` — one pinning decision is charged once, not once per lens.
What to do
- Resolve the 1 REDACTED finding(s) in Static Analysis (SAST) — start with REDACTED. — One of this dimension's main actionable groups (1 issue-level).
- Resolve the 1 REDACTED finding(s) in Static Analysis (SAST) — start with REDACTED. — One of this dimension's main actionable groups (1 warning-level).
- No action in Static Analysis (SAST) — all 8 REDACTED finding(s) are reported here at file:line but scored by D36 (supply-chain provenance), so none is charged to this dimension. — One of this dimension's main actionable groups (8 issue-level, 0 of them charged here).
D30 · Dependency Vulnerabilities
12 finding(s): 1 critical, 10 high, 1 medium, 0 low.
What to do
- Resolve the 9 High CVE finding(s) in Dependency Vulnerabilities — start with REDACTED (6). — One of this dimension's main actionable groups (9 issue-level).
- Resolve the 1 Critical CVE finding(s) in Dependency Vulnerabilities. — One of this dimension's main actionable groups (1 issue-level).
- Resolve the 1 High vulnerability finding(s) in Dependency Vulnerabilities — start with REDACTED. — One of this dimension's main actionable groups (1 issue-level).
D34 · Knowledge Freshness
6 of 43 significant source file(s) are orphaned — their living knowledge has decayed to nothing, so no one currently understands them. The largest is src/FsSpreadsheet.Js/Workbook.fs. Counted over 43 of the 68 production source files in this repository: the rest are under the ~2,400-byte size floor this dimension measures over.
What to do
- Resolve the 1 Orphaned files with no living knowledge finding(s) in Knowledge Freshness. — One of this dimension's main actionable groups (1 recommendation-level).
D35 · Change Coupling
No strong hidden change-coupling between production files.
D43 · Malicious Dependencies
No dependency in any ecosystem this repository declares is published as malicious.
D44 · Platform End-of-Life
0 end-of-life runtime(s) and 0 end-of-life framework(s), read from 14 platform declaration(s) and 4 dependency declaration(s). This dimension reads what the repository says about ITSELF — a pinned target framework, a version file, a capped requires-python, a Rust toolchain pin, a framework major a constraint cannot move off. A FLOOR is deliberately never charged: `requires-python = ">=3.8"` states what the package SUPPORTS, not what it runs on, and a well-maintained library declares exactly that while running its own CI on a current release. The end-of-life facts are FROZEN and dated, so this dimension needs no network and answers identically inside a closed scan fence; as the table ages it loses recall and never precision, because a statement about support that ended in the past cannot become false. The OS layer of a container image is D31's question and the toolchain a CI workflow installs is D29's; this row is neither.
Frontend & cross-cutting dimensions
AX10 · Code composition
What to do
- The domain core is a small share of production code, but most of the rest matched no layer vocabulary at all — so this is not yet an anemic-domain finding. The namespace/path convention could not place that code, which makes the composition above a statement about the naming, not about the design. Name the layers (or check that the repository's conventions differ from the ones this check knows) before reading a thin domain into it.
AX3 · Project dependency cycles
AX4 · Dependency direction
AX8 · Test isolation
M1 · Documentation (README)
What to do
- Add a build/run (quick start) section to the root README — the first thing a newcomer needs.
- Add a 'Testing' section to the root README — how to run the test suite.
- Add an 'Architecture' / 'How it works' section to the root README — the high-level shape.
M2 · Architecture documentation
- No Architecture Decision Records found — no conventional ADR directory, no numbered `NNNN-title` documents in any markup this check reads, and nothing ADR-shaped by content. Design rationale recorded elsewhere (a design-notes tree, a mailing list, pull-request discussion) is not visible to this check and is not re-findable per decision, so a future maintainer cannot ask why one choice was made and get an answer.
- No C4/Structurizr/PlantUML/Mermaid/Graphviz/D2 diagram, no drawn diagram named for the architecture, no file named `architecture` or `design` in any markup this check reads, and nothing in the README, docs or contributor guides that announces the shape — no `## Architecture` heading, no "architecture overview"/"high-level design" phrasing, no "the architecture is …" introduction, no guided code tour. A shape laid out in prose that never names itself as the architecture is not visible to this check, and neither is one kept outside the repository, so this row reports the absence of a re-findable shape document — not evidence that nobody wrote the shape down.
What to do
- Record significant decisions one document per decision — dated, stating the context, the decision and its consequences — and keep them together wherever your design docs already live (a conventional `docs/adr/` tree, with each file named `NNNN-title` in whatever markup those docs already use, is the most discoverable form).
- Add a C4 context/container diagram (Structurizr, PlantUML or Mermaid) or an architecture.md overview.
M3 · Folder & project structure
M4 · Documentation accuracy
P1 · CI/CD gates
P10 · Library API & versioning
P3 · Security & performance tooling
- No static application security testing detected. For this repository's stack, add `semgrep --config=auto` plus gitleaks for committed secrets (F# is not a CodeQL language and has no language-specific SAST engine) as a CI step. What was searched, so you can tell an absence from a miss: the 3412 CI workflow file(s) in this repository, and the scanner and linter configuration checked in beside them. A scan that runs outside CI, one configured in your forge's web UI rather than in a committed file, or a tool whose name is none of those this check carries, is not seen — if that is your case the row is wrong, and saying so is more useful than adding a second scanner.
What to do
- Add a SAST step to CI running what this repository's stack ships: `semgrep --config=auto` plus gitleaks for committed secrets (F# is not a CodeQL language and has no language-specific SAST engine) — so a security regression fails the build instead of landing.
- Enable Dependabot/Renovate or a dependency-review gate.
- Add gitleaks/trufflehog in CI to block PRs that introduce committed secrets.
P4 · Deployment & Rollback
- The release is automated and no gate that pauses it for a human is DECLARED IN THIS REPOSITORY'S PIPELINE FILES. What was read: every file under `.github/workflows/`, `.forgejo/workflows/`, `.gitea/workflows/`, `.azuredevops/` and `.azure-pipelines/`, plus `.gitlab-ci*` and `azure-pipelines*` — with comment text stripped, so documenting a gate is not declaring one. What would have counted: GitLab's `when: manual`, CircleCI's `type: approval`, an Azure `ManualValidation@` task or an `approvals:` block, a Jenkins `input` step, a `uses:` step naming an approval action, an `environment:` paired with `reviewers` / `required_reviewers` / `protection` / `wait-timer` / `deployment_branch_policy`, a draft-release step, a `workflow_dispatch` promotion, or a release-event gate. ★ What this cannot see, because none of it is a file: a GitHub environment whose required reviewers are configured in repo SETTINGS, a branch protection rule, or an organisation deployment policy — all of them real, enforced gates that live outside the repository. If yours is one of those, this row is wrong and nothing in the tree could have told us. Otherwise: whatever the release trigger points at is published to users unreviewed, so a mistagged or unverified commit ships and the only remedy is a follow-up release.
What to do
- Nothing pauses a release for a human: publish as a draft release (or gate the release job on a protected tag/manual dispatch) so a bad build can be stopped before users can download it.
P6 · Release Hygiene
PF3 · Async & latency hygiene
X28 · Index access outside its own emptiness guard
Reference — by lens
| Lens | Score | Rating | Impact |
|---|---|---|---|
| Code Health | 84% | Strong | Solid. |
| Architecture | 92% | Adequate — gated by D26 | Capped at Fair by a Critical contributor — resolve it before relying on this lens. |
| Maturity | 56% | Adequate — gated by M2 | Capped at Fair by a Critical contributor — resolve it before relying on this lens. |
| Readiness | 57% | Adequate — gated by P3 | Capped at Fair by a Critical contributor — resolve it before relying on this lens. |
| Security | 81% | Adequate — gated by D30 | Capped at Fair by a Critical contributor — resolve it before relying on this lens. |
| Performance | 100% | Exemplary | Strongest area. |
Unscored — 1 check(s) recorded observations but carry no score
- SC1 Supply-chain hygiene — 1 observation(s) recorded · Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
Not evidenced — 4 control(s) we could not find positive evidence for
- C3 Audit Trail — Not assessed: these audit controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks audit controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
- C4 Data Retention — Not assessed: these retention controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks retention controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
- C5 Data-Subject Rights — Not assessed: these data-subject rights controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks data-subject rights controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
- P5 DR & Backup — not evidenced — repo shows no backup/RTO/RPO controls; absence of evidence is not evidence of a working control
Not included — 76 check(s) not relevant to this codebase
- AC1 Text alternatives — Frontend below the scale floor (21 DOM element(s) < 25) — too little surface to assess accessibility.
- AC2 Forms & labels — Frontend below the scale floor (21 DOM element(s) < 25) — too little surface to assess accessibility.
- AC3 Page structure — Frontend below the scale floor (21 DOM element(s) < 25) — too little surface to assess accessibility.
- AC4 Keyboard semantics — Frontend below the scale floor (21 DOM element(s) < 25) — too little surface to assess accessibility.
- AC5 ARIA correctness — Frontend below the scale floor (21 DOM element(s) < 25) — too little surface to assess accessibility.
- AC6 Visual & motion safety — Frontend below the scale floor (21 DOM element(s) < 25) — too little surface to assess accessibility.
- AC7 A11y enforcement — Frontend below the scale floor (21 DOM element(s) < 25) — too little surface to assess accessibility.
- AX1 Captive dependencies — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
- AX2 Stateful singletons — Not applicable: TypeScript/JavaScript runs each process's requests on one event loop, so no two requests write a shared object at the same instant (interleaving across an await is a different defect).
- AX5 Architecture & structure — not assessed — architecture style/structure is computed from a project graph (projects, types, module namespaces) that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
- AX6 Interface segregation — not assessed — interface segregation is computed over a type surface that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
- AX7 Slice cohesion — not applicable — not a vertical-slice architecture
- AX9 CQS / query purity — no CQRS query handlers detected — query purity is not applicable to this codebase
- AXB1 Runtime evidence locked — no reproducible boot — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
- C1 Data Protection — Not assessed: these personal data controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks personal data controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
- C2 Access Controls — Not assessed: these authorization controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks authorization controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
- D17 Explicit Debt — the C# workspace loaded 0 projects, so explicit-debt density could not be measured
- D18 Solution Shape — D18 scores the shape of a C#/VB .NET solution; this repository's .NET projects are all F# (.fsproj), which the C#/VB workspace does not load, so the dimension does not apply.
- D20 ADR Quality — N/A — ADRs are expected on deployable products with a user-facing host, not consumed libraries; no ADR log is required here.
- D22 Internal API Consistency — The exposed public-API surface could not be collected — no C#/VB projects loaded.
- D23 Boundary Type-Coupling — No bounded-context organisation was detected either — neither a context-shaped layout nor 2+ sibling source directories each declaring an aggregate root. Declaring this codebase's bounded contexts (≥2) would let cross-boundary type coupling be assessed. Declare them in `.codehealth/config.yaml` at the repository root (create it if absent), mapping each context name to the module-path or namespace prefixes that belong to it — e.g. `architecture:` → `contexts:` → `Billing: ["src/billing", "Acme.Billing"]`, `Catalog: ["src/catalog", "Acme.Catalog"]`.
- D24 Comment Value — No inline comments to assess — comment value is not applicable here.
- D25 ADR Conformance — no ADRs to check
- D31 IaC & Container Security — No Infrastructure-as-Code or container manifests found (Dockerfile, Docker Compose, Terraform, Kubernetes/Helm, CloudFormation, ARM, Bicep, Ansible); nothing to scan.
- D32 Data Compliance (PII/GDPR) — No personal data was found crossing a boundary the PII/GDPR ruleset checks — nothing written to a log or console sink, placed in a URL or query string, or persisted to browser storage. That is a clean result for the LEAK surface only: this ruleset detects personal data escaping, it does not inventory the personal data a repository holds, so it is not evidence that this repository has no personal-data surface. The personal-data map (Appendix C) and the C1-C5 compliance cards are what speak to that.
- D36 Supply-chain Provenance & Signing — The CI pipeline builds and tests but publishes no released artifact — no package publish, container push, GitHub release or deployment step. Supply-chain provenance, signing and SBOM attest RELEASED artifacts, so there is nothing to attest here. Add them to the release pipeline when this repo starts shipping artifacts (a published package, a container image, a deployed service or a tagged release). Build integrity and workflow-token hygiene are reported below: they describe what the CI runs and the token it runs with, neither of which is affected by whether the pipeline ships an artifact.
- D37 Vulnerability-disclosure Policy — No vulnerability-disclosure policy file found (SECURITY.md/.markdown/.rst/.txt at root or under .github/.forgejo/.gitea/docs, .well-known/security.txt). A coordinated-disclosure policy may live off-repo, so this is not evidenced rather than failed.
- D39 IL Efficiency — IL not measured — no first-party assembly was located after a successful build
- D40 Network Egress Confinement — No Kubernetes/orchestration workloads found in the repository manifests; network egress policy is a cluster-native control that may live at the platform/firewall layer, so there is nothing to assess here.
- D41 Kernel & Syscall Confinement — No Kubernetes/orchestration workloads found in the repository manifests; seccomp/AppArmor/SELinux confinement is a workload-level control, so there is nothing to assess here.
- D42 Runtime Threat Enforcement — No Kubernetes/orchestration workloads found in the repository manifests; runtime threat-detection and admission-control policy are cluster-level controls, so there is nothing to assess here.
- D6 Cohesion (LCOM4) — D6 reads a CS/VB/GO/SCALA/SWIFT/DART/JAVA/PY/KT/TS/TSX/MTS/CTS/JS/JSX/MJS/CJS/PHP/RB/RS/ERL/EX/EXS class graph only — this repository's production source is .fs, which was left unread. Not scored: this is a gap in the analyzer, not a verdict about this repository.
- D7 Architectural Integrity — no checkable ADRs and no dependency cycles — architectural integrity not assessed
- D8 Code Coverage — Coverage NOT MEASURED: `--collect:"XPlat Code Coverage"` names a data collector that ships in the `coverlet.collector` package, and this repository wires up none — no test project references it and no runsettings declares one. The absence of coverage here is therefore not evidence about the suite or about our analyzer environment: without a collector, `--collect` produces nothing even from a suite that builds and passes. Add a `coverlet.collector` PackageReference to the test project(s) (or commit the Cobertura/OpenCover/lcov report your CI produces) and real coverage will be measured. It is excluded from the score rather than counted as a near-zero defect.
- DM1 Domain Modelling — not scored — this repository shows only 1 of the 3 signals this lens looks for (9 value object(s))
- ED1 Event-Driven — not scored — this repository shows none of the 3 signals this lens looks for
- ED5 Idempotency — no mutating command handlers or message consumers detected — idempotency check not applicable
- ES1 Event Sourcing — not scored — this repository shows none of the 3 signals this lens looks for
- GD1 Unfinished & placeholder code — no source files were read — this check reads C# and JavaScript/TypeScript, and neither was read for this repository's product. That is a limit of the analyzer, not a finding about your code.
- IC1 Incompleteness & stubs — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
- P12 CI test-gate honesty — Reported, not scored — and nothing was matched here. The coverage check applies to any stack, and the automatic-re-run check to any GitHub-Actions workflow, but the checks for excluded tests, skipped tests and sleep-based synchronisation currently recognise only some ecosystems' test-runner idioms, so on a repository built with another stack the zeros below mean 'not checked', not 'clean'.
- P2 Observability — Observability was not assessed: this check recognises the logging, tracing/metrics and health-check idioms of .NET, the JVM, Go, Python, JavaScript/TypeScript, Rust, Ruby, PHP, Swift, Dart, Elixir and Erlang, and most of this repository's production source is in none of them. Absence of an idiom this check recognises is NOT evidence that this repo lacks structured logging. This is a gap in the analyzer, not a finding about this repository.
- P7 Outbound HTTP resilience — not measured — the application kind could not be determined for this repo
- P8 Schema migrations — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
- P9 Domain vs controller coverage — no coverage report found on disk — produce a coverage report in a standard format (Cobertura — `dotnet test --collect:"XPlat Code Coverage"` with a `coverlet.collector` PackageReference) and commit it — a hosted scan measures a clone of the repository, so a report that exists only in a working tree, a CI runner's or your own, never reaches it; the artefact is commonly gitignored, so `git add -f` that one file (or un-ignore its path) and commit it alongside the code it measures, or wire coverage collection into CI, to enable this cross-layer check
- PF1 Benchmark discipline — Not applicable: no benchmark suite was found. This check searched for a BenchmarkDotNet reference in an .fsproj or .vbproj, and for a `*benchmark*` script that this repository's CI runs. Benchmarks are credited as a bonus, so their absence is neither scored nor deducted.
- PF2 Allocation hygiene — Allocation awareness was not assessed: this repository holds F#, whose allocation-aware idioms this check does not model yet. That is a gap in the analyzer's language reach, not a finding about your code.
- S1 Web-Security Posture — Not assessed: these web-security controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks web-security controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
- X1 Async correctness — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
- X10 Duplicated predicate — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
- X12 Unreachable branch — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X13 Undrained process stream — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X14 Bypassable address classification — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X15 Unvalidated length from an untrusted reader — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X16 Unfloored truncation loop — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X17 Uncapped recursion over a caller-supplied document — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X18 Disposal-pattern correctness — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X19 Unrestored process-global state — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X2 Cancellation propagation — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
- X20 Mistyped argument guard — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X21 Side-effecting pattern guard — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X22 Contradicted release guard — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X23 Unguarded diagnostic materialisation — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X24 Document value interpolated into markup unescaped — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X25 Inert configuration knob — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X26 Unsynchronised callback handoff — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X27 Collection changed while being enumerated — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X29 Per-element action decided by a fixed element — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X3 Exception handling — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
- X30 Support guard that admits what it rejects — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X32 Type resolved by simple name across every loaded assembly — This check reads C# syntax; no C# was loaded for this repository, so it has nothing to report. That is a limit of the analyzer, not a finding about your code.
- X4 Structured logging — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
- X5 Nullable reference types — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
- X6 Hand-rolled structured-format parsing — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
- X7 Silent fallback defaults — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
- X9 Subsumed condition operand — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
Appendix A — Findings (grouped)
Critical — 20 finding(s)
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- REDACTED
Serious — 47 finding(s)
- TooManyMethods: FsWorksheet src/FsSpreadsheet/FsWorksheet.fs:10
- TooManyMethods: FsTable src/FsSpreadsheet/Tables/FsTable.fs:11
- TooManyMethods: FsCell src/FsSpreadsheet/Cells/FsCell.fs:64
- TooManyMethods: FsCellsCollection src/FsSpreadsheet/Cells/FsCellsCollection.fs:18
- TooManyFunctions: FsExtensions src/FsSpreadsheet.Net/FsExtensions.fs:12
- TooManyFunctions: Row src/FsSpreadsheet.Net/Row.fs:9
- TooManyFunctions: SheetData src/FsSpreadsheet.Net/SheetData.fs:8
- TooManyFunctions: Spreadsheet src/FsSpreadsheet.Net/Spreadsheet.fs:12
- Duplicated block (7 lines × 2) src/FsSpreadsheet.Net/Table.fs:308
- Duplicated block (7 lines × 2) src/FsSpreadsheet/SheetBuilder.fs:73
- Duplicated block (7 lines × 2) src/FsSpreadsheet/SheetBuilder.fs:133
- Prerelease dependency: Microsoft.DotNet.Interactive
- Prerelease dependency: Microsoft.DotNet.Interactive.Formatting
- Duplicated block (11 lines × 2) src/FsSpreadsheet/DSL/SheetBuilder.fs:31
- Duplicated block (11 lines × 2) src/FsSpreadsheet/Tables/FsTable.fs:120
- Duplicated block (8 lines × 2) src/FsSpreadsheet.Net/Stylesheet.fs:87
- Duplicated block (8 lines × 2) src/FsSpreadsheet/DSL/CellBuilder.fs:35
- ZipArchiveReader.parseCell (cyclomatic 20) src/FsSpreadsheet.Net/ZipArchiveReader.fs:215
- Transform.Workbook.parseSheet.Static (cyclomatic 17) src/FsSpreadsheet/DSL/Transform.fs:112
- ZipArchiveReader.parseCell (cognitive 36) src/FsSpreadsheet.Net/ZipArchiveReader.fs:215
- SheetBuilder.FsWorksheet.Populate (cognitive 23) src/FsSpreadsheet/SheetBuilder.fs:132
- ZipArchiveReader.parseWorksheet (cognitive 22) src/FsSpreadsheet.Net/ZipArchiveReader.fs:264
- FsTable.RescanFieldNames (cognitive 20) src/FsSpreadsheet/Tables/FsTable.fs:496
- ZipArchiveReader.getStyles (cognitive 19) src/FsSpreadsheet.Net/ZipArchiveReader.fs:140
- SheetBuilder.FsTable.Populate (cognitive 17) src/FsSpreadsheet/SheetBuilder.fs:72
- FsExtensions.DataType.ofXlsXCell.Static (cognitive 17) src/FsSpreadsheet.Net/FsExtensions.fs:20
- REDACTED
- REDACTED
- REDACTED
- REDACTED
- Members sharing a duplicated core (6 members, 50+ identical tokens) src/FsSpreadsheet/DSL/CellBuilder.fs:1
- Duplicated block (27–30 lines × 2) src/FsSpreadsheet.Js/FsExtensions.fs:39
- Duplicated block (27–28 lines × 2) src/FsSpreadsheet.Net/FsExtensions.fs:64
- Duplicated block (25 lines × 6) src/FsSpreadsheet/DSL/CellBuilder.fs:90
- Duplicated block (19–21 lines × 2) src/FsSpreadsheet.Net/Row.fs:297
- Duplicated block (17 lines × 2) src/FsSpreadsheet/FsColumn.fs:45
- Duplicated block (11–15 lines × 3) src/FsSpreadsheet.Net/Workbook.fs:116
- Duplicated block (13–14 lines × 2) src/FsSpreadsheet.CsvIO/FsExtension.fs:81
- Duplicated block (12–14 lines × 2) src/FsSpreadsheet/Json/Worksheet.fs:38
- Duplicated block (13 lines × 2) src/FsSpreadsheet/Json/Worksheet.fs:71
- Duplicated block (10 lines × 2) src/FsSpreadsheet/Json/Column.fs:16
- Duplicated block (8–9 lines × 2) src/FsSpreadsheet.Js/Json.fs:41
- Duplicated block (9 lines × 2) src/FsSpreadsheet/Cells/FsCellsCollection.fs:328
- Duplicated block (6–7 lines × 2) src/FsSpreadsheet.Net/Worksheet.fs:121
- Duplicated block (6 lines × 2) src/FsSpreadsheet/Json/Cell.fs:23
- Coverage not measured — no coverage collector is wired up
- NuGet dependencies are not locked
Minor — 20 finding(s)
- No direct assertions: values tests/JS/Exceljs.js:10
- No direct assertions: table tests/JS/Exceljs.js:30
- No direct assertions: isa.investigation.xlsx tests/JS/Exceljs.js:42
- No direct assertions: isa_assay_keineTables tests/JS/Exceljs.js:50
- No direct assertions: fsspreadsheet.minimalTable tests/JS/Exceljs.js:64
- No direct assertions: isa.study.xlsx tests/JS/Exceljs.js:70
- No direct assertions: readOldClosedXml tests/JS/Exceljs.js:76
- No direct assertions: passes tests/JS/Exceljs.js:84
- No direct assertions: from excel tests/JS/Exceljs.js:114
- No direct assertions: should return -1 when the value is not present tests/JS/Core.js:5
- Test project verifies nothing: the repository root tests/JS/Exceljs.js:10
- Off-boarding risk: anonymized user #1
- Documentation: no architecture or design documentation docs/index.md
- Projects may be oversized for their cohesion
- Orphaned files with no living knowledge
- REDACTED
- No ADRs
- No architecture diagram/doc
- No SAST
- No release approval gate
Minor — 53 finding(s)
- Outdated (npm): @fast-csv/format
- Outdated (npm): @fast-csv/parse
- Outdated (npm): @types/node
- Outdated (npm): archiver
- Outdated (npm): archiver-utils
- Outdated (npm): async
- Outdated (npm): balanced-match
- Outdated (npm): big-integer
- Outdated (npm): bl
- Outdated (npm): bluebird
- Outdated (npm): brace-expansion
- Outdated (npm): buffer
- Outdated (npm): buffer-crc32
- Outdated (npm): compress-commons
- Outdated (npm): concat-map
- Outdated (npm): crc32-stream
- Outdated (npm): dayjs
- Outdated (npm): end-of-stream
- Outdated (npm): fast-csv
- Outdated (npm): glob
- Outdated (npm): immediate
- Outdated (npm): isarray
- Outdated (npm): jszip
- Outdated (npm): minimatch
- Outdated (npm): mkdirp
- Outdated: Fable.Core
- Outdated: FSharp.Core
- Outdated: Fake.Api.Github
- Outdated: Fake.Core.Process
- Outdated: Fake.Core.ReleaseNotes
- Outdated: Fake.Core.Target
- Outdated: Fake.DotNet.Cli
- Outdated: Fake.DotNet.MSBuild
- Outdated: Fake.IO.FileSystem
- Outdated: Fake.Tools.Git
- Outdated: Expecto
- Outdated: Microsoft.NET.Test.Sdk
- Outdated: YoloDev.Expecto.TestSdk
- Outdated: ClosedXML
- Outdated: Fable.Promise
- Outdated: DocumentFormat.OpenXml
Appendix B — Reproduction & audit trail
| Dimension | Tool | Version | Command | Findings | Raw output |
|---|---|---|---|---|---|
| D28 · Secrets (history) | gitleaks | — | gitleaks detect --no-banner --config /opt/gitleaks-rules/watchdog-gitleaks.toml --report-format json --report-path /tmp/watchdog-gitleaks-d0759833a6724a5492245c690f3f0be4/history.json --exit-code 0 --source . | 0 | artifacts/raw/gitleaks-history.json |
| D28 · Secrets (history) | gitleaks | — | gitleaks detect --no-git --no-banner --config /opt/gitleaks-rules/watchdog-gitleaks.toml --report-format json --report-path /tmp/watchdog-gitleaks-d0759833a6724a5492245c690f3f0be4/tree.json --exit-code 0 --source . | 0 | artifacts/raw/gitleaks-tree.json |
| D29 · Static Analysis (SAST) | semgrep | — | semgrep --config /opt/semgrep-rules/security-audit.yml --config /opt/semgrep-rules/owasp-top-ten.yml --config /opt/semgrep-rules/watchdog-sast.yml --json --quiet --timeout 10 --timeout-threshold 3 --metrics off . | 10 | artifacts/raw/semgrep.json |
| D30 · Dependency Vulnerabilities | dotnet | — | dotnet list FsSpreadsheet.sln package --vulnerable --include-transitive --format json | 12 | artifacts/raw/dotnet-vulnerable.json |
| D31 · IaC & Container Security | trivy | — | trivy: not applicable — No Infrastructure-as-Code or container manifests found (Dockerfile, Docker Compose, Terraform, Kubernetes/Helm, CloudFormation, ARM, Bicep, Ansible); nothing to scan. | 0 | — |
| D32 · Data Compliance (PII/GDPR) | semgrep | — | semgrep: not applicable — No personal data was found crossing a boundary the PII/GDPR ruleset checks — nothing written to a log or console sink, placed in a URL or query string, or persisted to browser storage. That is a clean result for the LEAK surface only: this ruleset detects personal data escaping, it does not inventory the personal data a repository holds, so it is not evidence that this repository has no personal-data surface. The personal-data map (Appendix C) and the C1-C5 compliance cards are what speak to that. | 0 | — |
| D37 · Vulnerability-disclosure Policy | disclosure | — | disclosure: not applicable — No vulnerability-disclosure policy file found (SECURITY.md/.markdown/.rst/.txt at root or under .github/.forgejo/.gitea/docs, .well-known/security.txt). A coordinated-disclosure policy may live off-repo, so this is not evidenced rather than failed. | 0 | — |
| D40 · Network Egress Confinement | runtime-hardening | — | runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; network egress policy is a cluster-native control that may live at the platform/firewall layer, so there is nothing to assess here. | 0 | — |
| D41 · Kernel & Syscall Confinement | runtime-hardening | — | runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; seccomp/AppArmor/SELinux confinement is a workload-level control, so there is nothing to assess here. | 0 | — |
| D42 · Runtime Threat Enforcement | runtime-hardening | — | runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; runtime threat-detection and admission-control policy are cluster-level controls, so there is nothing to assess here. | 0 | — |
| D43 · Malicious Dependencies | trivy | — | trivy fs --scanners vuln --format json --quiet --severity CRITICAL,HIGH,MEDIUM,LOW --skip-dirs **/bin/** --skip-dirs **/obj/** . --skip-db-update | 0 | artifacts/raw/trivy-fs.json |